An Autonomous Piezoelectric Energy Harvesting IC Based on a Synchronous Multi-Shot Technique

Gasnier, Pierre; Willemin, J.; Boisseau, S.; Despesse, Ghislain; Condemine, C.; Gouvernet, Guillaume; Chaillout, Jean-Jacques

doi:10.1109/jssc.2014.2325555

Cited by 106 publications

(61 citation statements)

References 23 publications

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“…In order to improve the power efficiency and minimize the charge waste due to charging C P , many active interface circuits have been reported [8], [10], including MPPT (maximum power point tracking) [11], [12], synchronous electric charge extraction (SECE) [13]- [16], etc. Among all interface circuits for piezoelectric VEH, the SSHI (Synchronized Switch Harvesting on Inductor) rectifier [17] is one of the most energy-efficient circuits with ideally no charge wastage.…”

Section: Introductionmentioning

confidence: 99%

An Efficient SSHI Interface With Increased Input Range for Piezoelectric Energy Harvesting Under Variable Conditions

Jia

et al. 2016

IEEE J. Solid-State Circuits

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Abstract-Piezoelectric vibration energy harvesters have been widely researched and are increasingly employed for powering wireless sensor nodes. The Synchronized Switch Harvesting on Inductor (SSHI) circuit is one of the most efficient interfaces for piezoelectric vibration energy harvesters. However, the traditional incarnation of this circuit suffers from a significant startup issue that limits operation in low and variable amplitude vibration environments. This paper addresses this start-up issue for the SSHI rectifier by proposing a new architecture with SSHI startup circuitry. The startup circuitry monitors if the SSHI circuit is operating correctly and re-starts the SSHI interface if required. The proposed circuit is comprehensively analyzed and experimentally validated through tests conducted by integrating a commercial piezoelectric vibration energy harvester with the new interface circuit designed in a 0.35 µm HV CMOS process. Compared to conventional SSHI rectifiers, the proposed circuit significantly decreases the required minimum input excitation amplitude before energy can be harvested, making it possible to extract energy over an increased excitation range.Index Terms-Energy harvesting, piezoelectric transducer, synchronized switch harvesting on inductor (SSHI), rectifier.

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Section: Introductionmentioning

confidence: 99%

An Efficient SSHI Interface With Increased Input Range for Piezoelectric Energy Harvesting Under Variable Conditions

Jia

et al. 2016

IEEE J. Solid-State Circuits

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“…It is similar to the 'Multi-shot technology' [51]. In the multi-shot technology, multi switching shots with small duty-cycles were used other than a single switching shot.…”

Section: Design Of the Adaptive Self-powered Harvesting Circuitmentioning

confidence: 99%

“…In the multi-shot technology, multi switching shots with small duty-cycles were used other than a single switching shot. Using this technique, not only the size of the DC-DC circuit will be smaller [49], but also the power loss will be reduced to√N [51]. The conduction losses are approximately divided by√N since the maximum current values are divided by√N compared to the single-shot method [51].…”

Section: Design Of the Adaptive Self-powered Harvesting Circuitmentioning

confidence: 99%

An Adaptive Self-powered Piezoelectric Energy Harvesting Circuit and Its Application on Bridge Condition Monitoring

Zhang

Geng

2017

Preprint

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Abstract:The abundant mechanical vibration energy in bridge road environment can be converted into electric energy by using the piezoelectric energy harvest technology, which could be an efficient way to provide energy required by the wireless sensor network in the bridge condition monitoring system. An autonomous energy harvesting system has been designed based on cantilever beams for sensing and acquiring the bridge vibration energy. After the analysis of the dynamic properties of the piezoelectric cantilever beam in the energy conversion, three kinds of interface circuits were compared through simulation and experimental results. It was shown that the VD interface circuit has less power loss. Furthermore, the proposed closed loop control method based on the VD circuit was simple, adaptive, and self-powered, which is suitable for the road energy harvesting application. Finally, the energy harvesting system based on VD circuit was realized with harvested power of around 0.8mW.Keywords: piezoelectric cantilever energy harvester 1; autonomous 2; adaptive 3; self-powered 4; voltage doubler interface circuit 5; closed loop control 6; feed-forward 7; multi-shot technology 8

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“…For lowly coupled piezoelectric harvesters, it has been demonstrated that synchronous strategies like Synchronous Electrical Charge Extraction (SECE) are promising and exhibit higher performances than classic electronic interfaces, such as a diode rectifier followed by a buck-boost converter [1][2][3]. However, for highly coupled or lowly damped generators, SECE is no longer efficient since it overdamps the mechanical system.…”

Section: Introductionmentioning

confidence: 99%

Regenerative synchronous electrical charge extraction for highly coupled piezoelectric generators

Morel

Pillonnet

Badel

2017

2017 IEEE 60th International Midwest Symposium on Circuits and Systems (MWSCAS)

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Abstract-This paper proposes a new strategy for vibration harvesting using piezoelectric material. This work relies on an adaptation of the classical Synchronous Electrical Charge Extraction (SECE). Instead of harvesting the energy at every displacement extremum, we choose to wait a certain number of extremum before harvesting the accumulated energy. This technique extends the harvested power compared to SECE, especially with highly coupled piezoelectric generators. It is notably shown that this strategy largely increases the harvested power as the product k m 2 Q m gets greater, and at the same time optimizes the switching losses. Measurements on a piezoelectric energy harvester (PEH) exhibiting a relatively large global coupling coefficient have been realized and have proven the efficiency and potential of this technique (193% harvested power improvement at resonance compared with a standard SECE strategy).

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An Autonomous Piezoelectric Energy Harvesting IC Based on a Synchronous Multi-Shot Technique

Cited by 106 publications

References 23 publications

An Efficient SSHI Interface With Increased Input Range for Piezoelectric Energy Harvesting Under Variable Conditions

An Efficient SSHI Interface With Increased Input Range for Piezoelectric Energy Harvesting Under Variable Conditions

An Adaptive Self-powered Piezoelectric Energy Harvesting Circuit and Its Application on Bridge Condition Monitoring

Regenerative synchronous electrical charge extraction for highly coupled piezoelectric generators

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